National Flip Clock - Tested and Working Shows signs of use. While in operation, a constant sound can be heard from inside. Internal inspection is recommended before use. Internal deterioration may also occur during storage. This is a used item sold as-is and considered junk. *Please refrain from purchasing if you do not understand the nature of USED items. Inspection is done by an amateur, so there may be oversights. Cancellations regarding the condition of the product after purchase will not be accepted. Please consider this a used item. "We hope you will consider this opportunity. Thank you."